This document defines marine pollution and discusses its causes and impacts. It states that marine pollution is the introduction of contaminants into aquatic environments that harms ecosystems or organisms. The main causes of marine pollution discussed are direct discharge of waste, runoff, ship pollution, atmospheric deposition, and deep sea mining. Major impacts include eutrophication, toxicity, and effects on sea creatures like death from ingestion of plastics. Prevention techniques mentioned include following anti-pollution acts and not littering to prevent trash from entering waterways.

1. A PRESENTATION BY
HARATI
SOWMYA
SRAVYA
HANEESHA
ECE-B

2. WHAT IS A
POLLUTION?
Pollution is the introduction of
contaminants into an
environment that causes
instability ,disorder ,harm or
discomfort to the ecosystem
i.e. physical systems or living
organisms.

3. WHAT IS MARINE
POLLUTION??

4. CAUSES OF MARINE
POLLUTION
Most sources of marine
pollution are land based.
The pollution often comes
from nonpoint sources such
as agriculture runoff and
wind blown debris.

6. There are five main types
of input of pollution
Direct discharge of waste into the sea
Runoff into the water due to rain
Ship Pollution
Atmospheric Pollution
Deep Sea Mining

8. DEEP SEA MINING

9. MAJOR IMPACTS OF MARINE
POLLUTION.
EUTROPHICATION
TOXICITY

10. SEA CREATURES AFFECTED
BY MARINE POLLUTION
 Many sea creatures are being affected
by this marine pollution.
 Direct consumption of plastics may
sometimes causes death of creatures

13. Under water ,noise
affecting mammals…

14. Marine dumping is one more major
impact which pollutes sea.

16. Ship accidents and
accidental oil spillages at the
sea can be very damaging to
marine environment.

17. MAJOR MARINE
POLLUTANT-OIL
•ABOUT 70% OF OIL SPILLS ARE
DISCHARING DIRECTLY IN SEA.

18. MAJOR MARINE
POLLUTANTS

19. By these ultimate affects
on sea many conventional
acts are being introducing.
 Convention for the Prevention of
Marine Pollution by Dumping from
Ships and Aircrafts (1972) THE OSLO CONVENTION.
Convention for the prevention
of pollution from ships (1973) MARPOL
Convention for the protection of the sea
environment the North-Atlantic
(1992) THE OSPAR CONVENTION.

20. ITS NOT ENOUGH BY HAVING
SUCH ACTS ,ITS ALSO
NECESSARY TO FOLLOW SOME
PREVENTIONAL TECHNIQUES
IN OUR HANDS.
 If we throw a piece of trash into the ground
it could travel through the storm
drains and at last into sea…